.sidebar-menu > li > a:hover, .sidebar-menu > li > a:focus, .sidebar-menu > li > a:active {
    color: inherit;
    background-color: rgb(0, 0, 0);
}
em.state-error {
    display: block!important;
    margin-top: 6px;
    padding: 0 3px;
    font-family: Arial, Helvetica, sans-serif;
    font-style: normal;
    line-height: normal;
    font-size: 0.85em;
    color: #DE888A;
}
div.tree ul {
    display: block;
    list-style-type: none;
}
div.tree li > span {
    display: block;
    font-size: 16px;
    padding: 1px
}
div.tree li > span.active {
    background-color: #3498db;
}
div.tree li > span:hover, div.tree li > span:focus, div.tree li > span:active {
    background-color: #3498db;
}